Connecting to 5G

[Paul Gildea]

Hi,

I am currently trying to connect some 5G modems to a 5G network, Telit
F980m and Cinterion MV31-W with libqmi 1.28.4. They are failing to connect.
Perhaps the 5G signal is not great as a phone with the same sim can connect
sometimes and not others (pr [perhaps it is that it is idling in LTE), but
I'd like to make sure the modems are looking ok. I notice some
irregularities in the output of commands, for the former modem I get:

Mode preference: umts, lte
> Acquisition order preference: umts, lte, 5gnr


For the Cinterion I get the opposite:

Mode preference: umts, lte, 5gnr
> Acquisition order preference: lte, umts


In each case 5gnr is missing from one of the outputs, is this usual?
Output for Cinterion bands:

qmicli -p -d /dev/cdc-wdm2 --dms-get-band-capabilities
> [/dev/cdc-wdm2] Device band capabilities retrieved:
>         Bands: 'wcdma-2100, wcdma-pcs-1900, wcdma-dcs-1800, wcdma-1700-us,
> wcdma
> -850-us, wcdma-800, wcdma-900, wcdma-1700-japan, wcdma-850-japan'
>         LTE bands: '1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25,
> 26, 28,
>  29, 30, 32, 34, 38, 39, 40, 41, 42'
>         LTE bands (extended): '1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18,
> 19, 20,
> 25, 26, 28, 29, 30, 32, 34, 38, 39, 40, 41, 42, 46, 48, 66, 71'


Are there any other debugging/commands that will be useful when I am
attempting to connect?
For instance a network scan should show 5g networks, not just LTE?

Thanks,

--
Paul
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